Wildcat Tri-Y Extractors/Headers fits Mitsubishi Express L300 SB-SF 1.8L 4G63 1979-1987 (WILD019)

Description:

Unlock more power and throttle response from your L300 Express's 4G62 engine with these direct bolt-on Wildcat Tri-Y extractors. The Tri-Y design improves exhaust scavenging across a broader RPM range compared to a standard exhaust manifold, giving you stronger mid-range pull without sacrificing top-end performance — and they suit both manual and automatic models.

Fitment

Specifications

Why Tri-Y Over a Standard Manifold?

• Tri-Y design pairs cylinders that fire consecutively, improving exhaust scavenging across a wider RPM range
• Stronger mid-range torque and throttle response compared to a standard exhaust manifold
• Direct bolt-on fitment — no cutting, welding or modification required
• Suits both manual and automatic transmissions
• 2-year warranty backed by tax invoice

Frequently Asked Questions

Is this a direct bolt-on fitment?
Yes — these extractors are designed to bolt directly onto the L300 SB-SF Express 1.8L 4G62 engine with no cutting or modification required.

Does this suit both manual and automatic models?
Yes — WILD019 suits both manual and automatic L300 Express models from 1979 to 1987.

Will I need to retune after fitting extractors?
A tune is not strictly required but is recommended to get the most out of the upgrade. At minimum, a tune will ensure the air/fuel ratio is optimised for the new exhaust flow.

What does Tri-Y mean?
Tri-Y refers to the pipe configuration — cylinders 1 & 4 and cylinders 2 & 3 are paired before merging into a single outlet. This pairing matches firing order intervals to improve exhaust gas scavenging, which boosts mid-range torque compared to a standard 4-into-1 design.

What is the availability on this product?
Please check availability before ordering. Contact us on 1800 069 965 or via chat and we'll confirm stock for you right away.

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We only ship our products Australia-wide, using several different carriers across the Country. We select the most suitable Carrier for your order and your area. Please understand that the customer doesn’t have the right to choose a Carrier unless it’s on their own freight account. All orders are provided with a tracking number and must be signed for when receiving goods.

LARGE ITEMS

Carriers Used: TNT Express, Star Track Express, Toll Ipec, Fastway, Orange Courier Service

Large Items cannot be sent to a PO Box, so please supply a physical address when purchasing. If a PO Box is supplied as the delivery address, this will delay your order. All items that are classified as Large Items have been listed in the description.

SMALL ITEMS

Carriers Used: Australia Post Eparcel, Australia Post Express Bag

Any questions about our Shipping Info, feel free to contact us

Performex Auto is committed to delivering excellent customer service and products that have outstanding quality. We endeavor to make sure that all products listed on our website are in Stock and the pricing is correct. Delivery timeframes are between 2 and 8 business days. If a product is ordered and it isn’t available, we will make contact with you and arrange an alternative product, a back order, or a full refund

Warranty & Returns

All our products come with a Warranty from the date of invoice. Product Warranty is stated on the listing. Please read our policy below before purchasing, as our staff will not be influenced into changing the policy in any way.

1. Warranty becomes null and void in the case of incorrect utilization or disregard of the instructions

2. Performex Auto is happy to offer replacement items (no refunds) if: the item is dead on arrival or damaged, a manufacturing fault with the Product, or an incorrect item was sent

3. If you have purchased an item, and you would like to return it, we can offer you a refund less a 15% restocking fee to cover Postage & Handling

4. Performex Auto Warranty does not cover any Labor cost (It is the customer's responsibility to check they have been sent the correct parts, before attempting fitting)

5. Transport costs are refundable when a warranty issue has been appropriately recognized and acknowledged by the appropriate staff members at Performex Auto

6. At all times, contact us at returns@performexauto.com.au with any issues or problems before returning the item. We will work hard to resolve any issues